you look pale,what troubled you i ( ) my dead friend.a,am thinking about b,was thinking about为什么不选a
问题描述:
you look pale,what troubled you i ( ) my dead friend.
a,am thinking about
b,was thinking about
为什么不选a
答
what troubled you ?
问句问的是过去哟
回答自然是过去的事儿